BERLIN—Sony Corp.’s mobile division did what it could to stand out from the crowd at the annual IFA consumer electronics fair in Berlin, highlighting new devices with long-lasting batteries that work as extensions for its popular PlayStation gaming console.

The Japanese consumer electronics giant—who has been in restructuring mode for a number of years—on Wednesday unveiled its holiday mobile devices portfolio.

The company is set to release a host of devices, including two smartphones, the flagship Xperia Z3 and the smaller Z3 compact, in addition to an 8-inch tablet, all powered by Google 's Android operating system.

Moreover, the company’s product lineup includes two new smartwatches, a more basic activity tracker called the SmartBand Talk, and a more powerful smartwatch running Google Android Wear software, called the SmartWatch 3.

Sony Corp.’s SmartWatch 3 runs on the Android Wear operation system and comes with a 1.6-inch LCD display.

Sony Corp.

With competition intensifying on the smartphone market, Sony clearly attempted to stand out. Kuni Suzuki, who heads the company’s mobile business, said one of the key features of the Z3 flagship phone is its long lasting battery, which the company claims will last for two days straight without charging.

What’s more, the company’s mobile unit is trying to capitalize on the popular PlayStation 4 gaming console, which has now sold over 10 million units since launching late last year, widely surpassing Sony’s own forecasts.

The new devices from Sony will be able to work as extensions for the PlayStation 4, and can stream games from the console locally over a Wi-Fi network, using the company’s remote play function. Mr. Suzuki said Sony’s Xperia lineup is the only series that will feature this functionality.

Sony’s mobile unit, which has been named as one of three pillars on which Sony now rests, needs a strong showing this fall. Last month the company sharply cut its forecast for smartphone sales this year. The smartphone unit posted an operating loss in the fiscal first quarter ended June.

But competition remains as intense as ever. A host of smartphone makers, including a number of increasingly aggressive Chinese makers, are in Berlin this week to showcase a raft of new devices. And next week, Apple Inc. is due to release an update to its product portfolio, including an update to its iPhone range.